GENERAL INFORMATION OF Polyvinyl Alcohol (PVA) CAS 9002-89-5

1.Name:polyvinyl alcohol,PVA ,vinylalcohol polymer,poval
2.CAS No.:9002-89-5
3.Formula:[C2H4O]n
4.Appearance: white flakes,floccus or powder solid,odorless.

SPECIFICATION

IN DEX	high-class	qualified
Alcohol solution degrees% ≥	99.8	99.7
Average polymerization degree	1750±50	1750±70
Acetic acid sodium% ≤	2.1	2.5
Volatile matter% ≤	7.0	9.0
Purity % ≥	90.0	85.0
The chroma % ≥	90.0	85.0
sodium hydroxide % ≤	0.20	0.30
embellish degrees %	0.20	0.30